Boring and screw-driving machine



(No Model.) 3 Sheets-Sheet 1.

E. FINN.

BORING VAND SCREW DRIVING MACHINE.

No. 487,441. Patented Dec. 6, 1892.

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` E. FINN. BORING AND SCREW DRIVING MACHINE. No. 487,441. Patented Deo.6, 1892.

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E. FINN.

` BORING AND SCREW DRIVING MACHINE. No. 487,441. l Patented Deo. 6,1892.

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v I Zwzl?? jzyenlv" v UNiTisn STATESA PATENT @Tarea EDWIN FINN, OFELKHART, INDINA.

BORING AND SCREW-DRIVING MACHINE.

lSPECIFICHEOIxl' forming part of Letters Patent No. 487,441, datedDecember 6, 1892. Application tiled April 12, 1892. Serial No. 428,800.(No model.)

.To all whom, t may concern:

Be it known that I, EDWIN FINN, a citizen of the United States, residingat Elkhart., in the county of lElkhart; and State of Indiana, haveinvented anew and useful Improvement in Boring and Screw-DrivingMachines, of which the following is a specification.

My invention relates to machines for boring Wooden panels and the like,and more particularly to machines whereby a number of holes atpredetermined points in the same board or panel may be bored at thesametime.

rlhe object of my invention is to provide a machineof the characternamed which shall be simple and readily adjustable and particularlyeffective for the purpose to which it is applied.

My invention consists generally in a compound boring-machine comprisinga series of boring-tools arranged in different planes and all drivenfrom the same source of power, whereby a number of holes may be producedat one operation.

My invention consists, further, in a coinpound boring-machine comprisinga number of boring-tools driven from a common source of power to operatesimultaneously, said boringtools being adjustable individually andin'series withv relation to each other.

My invention consists, further, in a boringmachine comprising boringtools properly supported and driven and a traveling bed for the work,movable toward and from the bor'- ing-tool and adjustable to present thework to the boring-tool on an incline, whereby the holes may be obliquewith relation to the panel or other work; and my invention consists,further, in the general and specific details of construction andcombination of parts, all as hereinafter set forth.

I desire it further understood that the machine herein described andclaimed may by the simple operation of substituting screwdriving bitsfor boring-bits be used successfully as a multiple-screw-drivingmachine, t-he screws being placed in position on the board or panel orotherwise held in such manner as may prove most convenient under thecircumstances. Hence my improvements, though described and claimed asapplied to a boringmachine, are to be understood as relating to themachine, whatever use it may be put to.

In the drawings, Figure l is a sectional side elevation on the line l ofFig. 2 of a machine embodying my invention. Fig. 2 is a front elevationof the same, showing all but one in the sections between theboring-tools and drive-shaft removed to prevent confusion in the View.Fig. 3 is a horizontal section through the bed or table, taken ou theline 3 of Fig. 2 and viewed in the direction of the arrow. Fig. 4 is aview, partly in section, of thelower member of the tool-drivingspindle.v Fig. 5 is a similar view of the middle member of the same.Fig. 6 is an elevation of the upper member of the same; and Fig. 7, abroken perspective View of the slotted bar extending transversely of themachine, which receives the bit-stocks and through which they areadjusted in series.

A represents the side pieces of the frame, which may be of anyconvenient form and supported in any convenient manner, from the upperend of which projects forward a head B and from an intermediate point oneach of said side pieces projects forward the slotted guideway C. Thelength of the head B is ordinarilyv determined by the number of rows ofboring-tools that it is desired to provide. In the illustration heregiven the machine is arranged for three rows of boringtools, each rowmade up of four tools. It will be understood that twelve holes may bebored simultaneously by the present machine and that the number may bevdiminished, if desired, or increased in the mannerhereinafter described,but that with the arrangement of parts here shown more than three rowsof boring-tools cannot be supplied. This may be done, however, withoutdeparting from my invention in the manner hereinafter set forth.

In journal-bearings t, located upon the head B, are sustained shafts DD', the latter of which carries at its end a drive-pulley s, and betweenthe pulley and the bearing a gearwheel r, which meshes with and drives asimilar gear-wheel fr on the shaft D.

At intervals upon the shaft D are located miter-pinions E, which may besplined to the shaft or otherwise secured thereto to revolve therewithwhile still being adjustable longitudinally thereon. In the illustrationgiven in Figs. l and 2 set-screws q are shown as the means for holdingthe pinions in place and IOO permitting them to be adjustedlongitudinally of the shaft. The shaft D is provided with a series ofbeveled pinions E,doublein number as compared with the number on theshaft D and having the bevel in a direction opposite to the bevel of thepinions E.

Extending from one head B to the other are slotted bars F, of which itis preferred to provide two, each immediately below a shaft D D. Theslot in the bar F affords a means for adjustably supporting a series ofsleeves G G', through which sleeves the upper member p of the toolconnection H passes, said uppermemberbeing supportedin the sleeves, aspresently explained. The slotted guideway C is in the form of aforward-projecting head provided on its inner face with a squared groove0, in which groove is supported either end of three slotted bars I. Thebars I are in number corresponding with the number of rows ofboring-tools provided and, as will be apparent, are adjustable forwardand backward with relation to the frame and may be held firmlyintheiradjusted position through the medium of set-screws o or otherconvenient device.

The bit-stock comprises, preferably, three members 19,19', and p2,connected together by universal joints in a common manner, theconnection between them being such that the revolution of the uppermember will cause a revolution ot' the other members, while the membersmay be out of plane with each other without interfering with theconnection. Of these members the one at the upper end p terminates atits upper extremity in a beveled pinion n, which meshes with the pinionE E on the shaft D D. The member p passes through and is sustained by asleeve G G', adjustably secured in the slotted bar F, as beforedescribed. The middle member p comprises two sections m m', the formerin the shape of a sleeve and the latter in the shape of an entering rod,which is splined or otherwise held in the sleeve in a manner to permititto havearelative longitudinal movement while being caused to revolvewith the revolution of the sleeve. The lower end of the upper memberpand the upper end of the sleeve m are provided with universal-jointmechanism of the kind shown, whereby they shall turn together on theirlongitudinal axes and yet may present a relatively-diierent plane. Thelower end of the member p is also provided with one member of auniversal joint for connection with the lower member p2.

The lower member or bit stock or socket proper p2 comprises ascrew-threaded rod l, terminating at its upper end in one member of auniversal joint and at its lower end terminating in a bit-receiver Z.The-memberp2 passes through the slot in the slotted bar I and is heldagainst movement therein by a pair of opposite freely-traveling washersZ2, having shoulders to impinge against the opposite sides of the barLand nntslf, moving on the screw-threads on the rod l. It willbeapparent that the sleeves G incline in opposite directions,respectively, inward and outward, while the sleeve G is vertical. Themembers p of the bit-stock connection are passed through the sleeves Gand are caused to ineline in a si milar manner, thus lengthening thedistance between the terminal of said member and the upper end of thebit-stock proper p2. By making the intermediate member telescopic, asshown, the diiference in distance thus occurring is overcome. 'lhepurpose of providing the inclined sleeves G is to permit the three rowsof tools to be driven from two drive-shafts. As before mentioned,theshaft D carries eight pinions E', while the shaft D carries but four-onefor each tool in the series. By employing the inclined arrangement ofmembers pp', with the universaljoint connection between them and withthe bit-stock proper, the boringtools may be placed in parallel linestranversely and longitudinally and driven by pinions ont of line witheach other. Thus the beveled pinions E', which drive the middle row oftools, may be immediately behind the beveled pinions E, and the beveledpinions E', which drive the rear row of tools, may be located on pointsupon the shaft D between the other pinions. The pinions ot on the upperend of the member p in each case meshes with a pinion E E', and theincline necessary to permit them thus to mesh does not interfere withthe communication of theirrevolution to the boring-tool, as will bereadily apparent. As the pinions E revolve in an opposite direction tothe-pinions E by reason of the meshing of the gearwheels r r', the bevelprovided thereon is opposite to the bevel on the pinions E, and theopposite side of the pinion n is caused to mesh with said pinion E',whereby said pinion n revolves in the same direction on all theconnections H throughout the machine.

The table and connecting parts for carrying the work (wood panels or thelike) toward the constantly-driven boring-toolsare preferably made intwo sections. The section K extends the full width of the frameA` and isprovided at each end with an enlargement 7a, having on its inner faceadovetailed recess to receive the dovetail projection 7L,

formed on the side pieces, as indicated in provided with the recessesindicated at g, and Y from each enlargement 7c projects a tongue c,which serves as a stop to prevent the turning of the table L upon thepivot t' beyond a predetermined distance. The vertical part t of thetable is also provided with curved slots IOO iol:

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1'?, through which pass set-screws t3 intothe section K. The purpose ofthese curved slots and set-screws is to permit the table after beinginclined from the horizontal to be secured in said inclined position.

The raising and lowering ot the table is accomplished through the mediumof curved arms M, each of which is mounted upon a shaftf, terminating atits inner end in a beveled pinionf. Said beveled pinionfl meshes withbeveled pinion e, located on the opposite extremities of a transverseshaft e', through which connection the pinions e are caused to turn inunison. The shaft of one of the pinions f continues into a crank CZ, bywhich it may be turned by a winch. (Not shown.) As shown in thedrawings, the arms M are oppositely curved, and by reason of theconnection shown when the pinionf at one end is turned by themanipulation of the winch the pinionf at the opposite end is turned inthe opposite direction, thereby turning the curved arms M outward andupward and moving the table L at both sides, and hence uniformlythroughout.

The operation is as follows: The parts being arranged as heretoforedescribed, and the various bit-stocks having been adjusted laterally andtransversely to the points necessary to bore holes at predeterminedplaces, and the drum S being set in motion, the winch is turned, therebymoving the panels to the boring-tools, which are thereby caused to boreall the holes necessary at a single operation. If it be desired to boreoblique holes in the work, the table may be caused to incline in eitherdirection by loosening the set-screws i3 and turning the table upon thepivott` until the proper incline is reached. The table being thussecured and the work placed thereon inclined, holes may be bored throughthe same by moving the table through the medium of the curved arms M inthe manner before described.

It will be quite apparent that the number of boring-tools in each seriesmay be increased or diminished by increasing or diminishing the numberof beveled pinions E E and introducing into or removing from the bar Ibit-stocks for the tools with corresponding increase or decrease in thenumber of connecting media H. It is also quite apparent that theconnections I-I may be made of similar parts in all particulars, whetherthey are to be employed with a vertically-arranged member p or withaninclined memberp. It is also quite apparent that the capacity of themachine may be increased to any extent desired by increasing the numberof shafts D D', adjusting-bars F, and slotted bars I. It will thereforebe understood that although I have in the present specificationparticu-- larly described a machine adapted to bore twelve holes, I donot in any sense coniine my invention thereto.

The specific connections and modes of securing the parts together arecapable of change in matters of detail, as will readily appear to theskilled mechanic, without departing from my invention. The machine shownand described is believed, however, to be especially desirable not onlyin the general invention, but in the matter of detail.

What I claim as new, and desire to secure by Letters Patent, is-

l. A compound machine for use in boring or screw-driving, comprising, incombination, parallel series of simultaneously-driven,separably-mounted, laterally and longitudinally adjustable, andvertically-fixed tool stocks or sockets and a movable table to supportthe material operated upon and carry it to and from the tools,substantially as described.

2. In a compound machine for use in boring or screw-driving, incombination with the frame, the simultaneously-driven parallel shafts,and a series of tool-stocks independently supported and laterally andlongitudinally adjustable, said stocks connected with said shafts to beoperated thereby, substantially as described.

3. In a machine for boring and screw-driving, the combination, with theframe and with the bar I, having a vertical slot through the same, ofvertically-arranged sectional bitstocks H, supported in the frame andpassing through and supported in the slotted bar to be transverselyadjustable on the latter, a shaft having gear connections at intervalswith said bit-stocks, and means for driving said shafts, substantiallyas described.

4. In a boring and screw-driving machine, in combination, a frame A, adrive-shaft eX- tending across the frame, a guide-bar F, eX- tendingacross said frame below the driveshaft, and a vertically-slotted bar I,extending across and adj ustably supported in said frame below theguide-bar, bit-stock connections supported toward their upper ends onthe guide-bar to be laterally adjustable thereon and toward their lowerends in the slotted bar to be laterally and independently adjustablethereon, and beveled gears on the drive-shaft and bit-stock connections,meshing with each other, substantiallyas described.

5. In a machine for boring and screw-driving, in combination with thebit-stocks and their connections and means for revolving the same, theindependently-slotted bar I to receive the bit-stocks, adj ustablysupported in guides C in the frame to be held against movement in thedirection of boring and to be capable of adjustment forward andbackward, and means, substantially as described, for affording anadjustable connection between the bit-stocks and slotted bars,substantially as described.

6. In aboring-machine, in combination, slotbar I, the bit-stock-carriersegment p2, passing through the slot-bar, washers Z2 upon said segment,and nuts Z3, whereby the segment p2 may be adj ustably secured at apredetermined location in the slot-bar, all as set forth.

7. In aboring-machine, in combination with IOO IIO

the fixed vertical revolnbie boring-tool, a ta ble having aslidingconnection with the frame below the boring-tool, and curved armsjoined to co-operate, mounted, respectively, upon the frame-toward theopposite ends of the table and movable on their pivots in a verticaldirection to raise and lower both sides of the table in their movement,substantially as described.

8. In a boring-machine, in combination with the boring-tools supportedin fixed position, a table supported below the tools t0 have a freevertical movement, said table comprising sections K L, the latterpivotally supported on the former, wherdby it may be adjusted to aninclined position, if desired, and means for raising said table,comprising simultaneouslymoving curved arms M, supported below the tableand engaging and lifting the latter, substantially as described.

9. A boring-machine comprising, in combination, the following elements:a frame A, provided at its upper end with a shaft-supporting head,toward its lower end with vertical grooves, and at an intermediate pointwith horizontal ways C, si m nltaneously-d riven shafts extending acrossthe frame and carryin g at intervals bevel'gears, slotted bars I, havingtheir ends introduced into the guide C, bit connections made ofconnected members, engaging the pinions on the shafts, respectively, tobe revolved thereby and passing through the slot-bars l and held thereinagainst vertical displacement, a table laterally supported in themachine, guideways on the frame to move freely therein, curved arms M,mounted, respectively, on shafts, each carrying a bevel-gear, said bevelgears being connected to co-operate, and means, substantially asdescribed, for turning at will either of said curved arms on its shaft,thereby turning the other to elevate the table toward the bits,substantially as described.

EDWIN FINN.

In presence of- J. D. SALsIG, J As. TAYLOR.

It is hereby certified that in Letters Patent No. 487,441 granted,December 6, 1892, npon the application of Edwin Finn, ofs Elkhart,Indiana, for an improvement in Boring and Screw-Driving Machines, errorsappear in the printed specification re quiring correction as follows: Inline 119, page 3, the Word independently should read independent and thehyphen thereafter should be stricken out; and that the said LettersPatent should be read with v.these corrections therein that the same mayconform to the record of the case in the Patent Office.

Signed, eountersigued, and sealed this 20th day of December, A. D. 1892.

CYRUS BUSSEY, Assistant Secretary of the Interior.

[SEAL] Countersigned:

W. E. SIMoNDs,

Commissioner of Patents.

